diff --git a/include/libspirv/libspirv.h b/include/libspirv/libspirv.h
index 8f0b5ab1..3c48e514 100644
--- a/include/libspirv/libspirv.h
+++ b/include/libspirv/libspirv.h
@@ -112,6 +112,7 @@ typedef enum spv_result_t {
   SPV_UNSUPPORTED = 1,
   SPV_END_OF_STREAM = 2,
   SPV_WARNING = 3,
+  SPV_FAILED_MATCH = 4,
   SPV_ERROR_INTERNAL = -1,
   SPV_ERROR_OUT_OF_MEMORY = -2,
   SPV_ERROR_INVALID_POINTER = -3,